Pump valve



Patented ct. `8, 1929Y l Y n i RAY L. DAVIS, or wnnfnnrna'wnsr VIRGINIA l PUMP VALVE Application filed May 25,1928. Serial No. 280,572.

The invention relates to improvements in novel constructionv forthe standing valve'S Y -valves designed primarily for oil well pumps or the traveling valve T, or both. The conbut not necessarily restricted thereto. struction of both of these lvalves is substan- The principal object of the invention is to tially the same, and hence a description of provide a new and improved valve constructhe traveling valve will, for the most part, 55

tion which will operate to quickly seat and suffice for both. l Y unseat, will seat with a cushioning e'tiect, will The valve T embodies a cage 6`of unusual eliminate chattering` and leakage, will pre-. length, in that it is much longer than the vent knock and strain of the pump, will ordinary cage. The lower portion 7 of this lo greatly lighten the load and strain on the cage is annular for connection with the upper engine and entire rig, and will eliminate end of the working barrelV, and threaded knocking and buckling of suction rods. into this annular portion is a seat ring 8.

Another object of the invention is to pro-r This seat ring is Vprovided with a seat 9 for vide a construction which will not become a ball valve 10,.and with asecond seat 11 clogged with sand, paraffin, etc. which surrounds said seat 9. --Co-operable 65 Vith the foregoing in View, the invention with this seat 11, is a cap valve 12 which eXf resides in the novel subject matter hereinafter tends over and around the ball valve 10-and described and claimed, description being ac-v is disposed within the cage 6,-t0 be guided complished by reference to the accompanythe latter.t The upper end 13 of this cap ing drawings. valve 12, is formed withV a fluid passage 14 70 Fig. 1' is a vertical sectional view partly and with a valve seat 15 therefor, but the side broken away and in elevation, showing a wall 16 of said cap valve is imperforate. A pump embodying a standing valve and a second ball valve 17 is co-operable with the f traveling valve constructed inv accordance seat 15, and afsecond cage 18 is provided for with the invention. this valve, saidcage 18 being disposed within 75 Fig. 2 is an enlarged vertical sectional view the cage and carried by the cap valve 12. of the traveling valve. Preferably, the upper end 13 of valve 12 is Figs. Sand t are transverse sectional views separate from the side wall 16 of said valve on lines 3-3 and 1 -1 of Fig. 2. and acts asa coupling between this valveand Fig. 5 is aside elevation partly broken he'cage 1S, beingl threaded into both. g@ away and in section, of the standing valve. The cap valve seat 11 ofthe valve T is In the drawing above briefly described, C steeply inclined and engages the inner. sideA denotes a well casing,'B has reference to the of the wall 16, said wall beingv beveled as stationary pump barrel, D denotes an anshown'in Fig. 2. The corresponding seat11 Y choring device to which the lower end of said of the standing valve S however, while also 855 barrel is connected, S refers to the standing steeply inclined,`engages the outer side of the valve inthe lower portion of the barrel B, valve wall 16, which side is suitably beveled. y"vl/*denotes the-working barrel, and T desig- These diierences in construction may be folnates a traveling valve at'the upper end of lowed if desired, but are not essential. The

l 40 the barrel W, connected with the pump rod only other differences between the standing 9oy R. T indicates a second traveling valve at. and traveling valves, arethat the latter is the lower end of the working barrel 1N, F provided with an appropriate connection 9 indicates 'a portion'of packing means carried for the pump rodR and may ifdesired be by the stationarybarrel B for engagement provided with means for connecting it temwith the working barrel TW, and F refers to porarily with the follower F for turning the a follower for adjusting the packing P. latter tovtighten the packing means P. This The present application is not concerned means however, forms no part of the present either with the general construction of the invention and ishence omitted.

pump, with the packing and its adjusting By constructing the valves in orsubstan- 5U means,l or with the valve T, but resides in a tially in the manner shown and described. 100

i in

they are exceptionally quick-acting in effecting either a passage of liquid or in trapping off said liquid. The cap valve slides vertically and when it closes, traps off the liquid,

ypermitting positive and quick seating of the contained ball valve Withacusliioned effect. The other valve 17 and the passage 14, permit part of the liquid to discharge through this ypassage at each stroke lof the pump. Thus7 not only is easy liquid flow provided for, but

passage of liquid takes place through'the cap f valve 16 to continually lush the same and' `prevent clogging thereof with sand, paraiiin,

etc. 1 v

While excellent results are obtainable Y from the general construction shown and described, it is to be understood that Within the scope of the invention as Claimed, variations may be made.

I claim l. A pump valve comprising a cage having a valveseat and a second seat surrounding the irst named seat,V a check valve co-operable with said first named seat, a cap valve Within said cage extending over and around said check valve and engaging said second seat, the upper end of said cap valve being formed With a fluid passageand a valve seat therefor, and another check valve `(3o-operv able With this seat.

2. A piunpvalve comprising a cage having a ballv valve seat and a second seat surrounding said ball valve seat, a Vball valve (zo-operableI with said ball valve seat, a .cap valve Within said cage extending over and around said ball valve and co-operating with said second seat, the upper end of said cap valve having a lluid passage and a ball valve seat therefor, a second ball valve co-o-perable With the last named valve seat, and a second cage for said second ball valve,V said second cage being disposed Within the irst named cage and carried bysaid cap valve.

Invtestirnony whereof I have hereunto ai fixed my signature. p

RAY L. DAVIS. 

